# REQUIRES: system-linux, lzma, xz

# We want to keep the symbol "multiplyByThree" in the .dynamic section and not
# have it put the default .symtab section.
# RUN: echo "{multiplyByThree;};" > %T/dynmic-symbols.txt
# RUN: %clang_host -Wl,--dynamic-list=%T/dynmic-symbols.txt -g -o %t.binary %p/Inputs/minidebuginfo-main.c

# The following section is adapted from GDB's official documentation:
# http://sourceware.org/gdb/current/onlinedocs/gdb/MiniDebugInfo.html#MiniDebugInfo

# Extract the dynamic symbols from the main binary, there is no need
# to also have these in the normal symbol table.

# IGNORE: llvm-nm -D %t.binary --format=posix --defined-only | awk '{ print $1 }' | sort > %t.dynsyms

# Extract all the text (i.e. function) symbols from the debuginfo.
# (Note that we actually also accept "D" symbols, for the benefit
# of platforms like PowerPC64 that use function descriptors.)

# IGNORE: llvm-nm %t.binary --format=posix --defined-only | awk '{ if ($2 == "T" || $2 == "t" || $2 == "D") print $1 }' | sort > %t.funcsyms

# Keep all the function symbols not already in the dynamic symbol
# table.

# IGNORE: comm -13 %t.dynsyms %t.funcsyms > %t.keep_symbols
# The result of the preceeding command can be hardcoded
# because we know what symbol to keep.
# RUN: echo "multiplyByFour" > %t.keep_symbols

# Separate full debug info into debug binary.

# RUN: llvm-objcopy --only-keep-debug %t.binary %t.debug

# Copy the full debuginfo, keeping only a minimal set of symbols and
# removing some unnecessary sections.

# RUN: llvm-objcopy -S --remove-section .gdb_index --remove-section .comment --keep-symbols=%t.keep_symbols %t.debug %t.mini_debuginfo

# This command is not from the GDB manual but it slims down embedded minidebug
# info. On top if that, it ensures that we only have the multiplyByThree symbol
# in the .dynsym section of the main binary. The bits removing .rela.plt,
# .rela.dyn and .dynsym sections can be removed once llvm-objcopy
# --only-keep-debug starts to work.
# RUN: llvm-objcopy --remove-section=.rela.plt --remove-section=.rela.dyn --remove-section=.rel.plt --remove-section=.rel.dyn \
# RUN:   --remove-section=.gnu.version --remove-section=.gnu.hash --remove-section=.hash --remove-section=.dynsym %t.mini_debuginfo

# Drop the full debug info from the original binary.

# RUN: llvm-strip --strip-all -R .comment %t.binary

# Inject the compressed data into the .gnu_debugdata section of the
# original binary.

# RUN: xz --force --keep %t.mini_debuginfo

# RUN: llvm-objcopy --add-section .gnu_debugdata=%t.mini_debuginfo.xz %t.binary

# Now run the binary and see that we can set and hit a breakpoint
# from within the .dynsym section (multiplyByThree) and one from
# the .symtab section embedded in the .gnu_debugdata section (multiplyByFour).

# RUN: %lldb -b -o 'b multiplyByThree' -o 'b multiplyByFour' -o 'run' -o 'continue' -o 'breakpoint list -v' %t.binary | FileCheck %s --dump-input-context 20

# CHECK: (lldb) b multiplyByThree
# CHECK-NEXT: Breakpoint 1: where = minidebuginfo-set-and-hit-breakpoint.test.tmp.binary`multiplyByThree, address = 0x{{.*}}

# CHECK: (lldb) b multiplyByFour
# CHECK-NEXT: Breakpoint 2: where = minidebuginfo-set-and-hit-breakpoint.test.tmp.binary`multiplyByFour, address = 0x{{.*}}

# CHECK: * thread #1, name = 'minidebuginfo-s', stop reason = breakpoint 1.1
# CHECK: * thread #1, name = 'minidebuginfo-s', stop reason = breakpoint 2.1

# CHECK: (lldb) breakpoint list -v
# CHECK-NEXT: Current breakpoints:
# CHECK-NEXT: 1: name = 'multiplyByThree'
# CHECK-NEXT:  1.1:
# CHECK-NEXT:  module = {{.*}}/minidebuginfo-set-and-hit-breakpoint.test.tmp.binary
# CHECK-NEXT:  symbol = multiplyByThree
# CHECK-NEXT:  address = 0x{{.*}}
# CHECK-NEXT:  resolved = true
# CHECK-NEXT:  hardware = false
# CHECK-NEXT:  hit count = 1

# CHECK: 2: name = 'multiplyByFour'
# CHECK-NEXT:  2.1:
# CHECK-NEXT:  module = {{.*}}/minidebuginfo-set-and-hit-breakpoint.test.tmp.binary
# CHECK-NEXT:  symbol = multiplyByFour
# CHECK-NEXT:  address = 0x{{.*}}
# CHECK-NEXT:  resolved = true
# CHECK-NEXT:  hardware = false
# CHECK-NEXT:  hit count = 1
